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package api
import (
"context"
"github.com/labstack/echo/v4"
"albatross-2026-backend/auth"
"albatross-2026-backend/db"
)
type sessionIDContextKey struct{}
type userContextKey struct{}
func SessionCookieMiddleware(q db.Querier) echo.MiddlewareFunc {
return func(next echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
cookie, err := c.Cookie("albatross_session")
if err != nil {
return next(c)
}
hashedID := auth.HashSessionID(cookie.Value)
user, err := q.GetUserBySession(c.Request().Context(), hashedID)
if err != nil {
return next(c)
}
ctx := c.Request().Context()
ctx = context.WithValue(ctx, sessionIDContextKey{}, hashedID)
ctx = context.WithValue(ctx, userContextKey{}, &user)
c.SetRequest(c.Request().WithContext(ctx))
return next(c)
}
}
}
func GetSessionIDFromContext(ctx context.Context) (string, bool) {
sessionID, ok := ctx.Value(sessionIDContextKey{}).(string)
return sessionID, ok
}
func GetUserFromContext(ctx context.Context) (*db.User, bool) {
user, ok := ctx.Value(userContextKey{}).(*db.User)
return user, ok
}
// SetUserInContext sets a user in the context. Intended for testing.
func SetUserInContext(ctx context.Context, user *db.User) context.Context {
return context.WithValue(ctx, userContextKey{}, user)
}
type clientIPContextKey struct{}
// ClientIPMiddleware extracts the client IP from echo.Context.RealIP()
// and stores it in the request's context.Context so that handlers
// receiving only context.Context (via generated code) can access it.
func ClientIPMiddleware() echo.MiddlewareFunc {
return func(next echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
ip := c.RealIP()
ctx := context.WithValue(c.Request().Context(), clientIPContextKey{}, ip)
c.SetRequest(c.Request().WithContext(ctx))
return next(c)
}
}
}
func GetClientIPFromContext(ctx context.Context) string {
ip, _ := ctx.Value(clientIPContextKey{}).(string)
return ip
}
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